Cooperative bib-cock



Filed Oct. 23, 1936 Fiq. i

INVENTOR,

wm J R T H TW m w. a 2 8 .1 a P a m Patented Oct. 19, 1937 waste PATENT OFFICE 2,096,370 COOPERATIVE BIB-COCK 7 Stephen J. Carmody, Bellingham, Wash.

Application October 23, 1936, Serial No. 107,240

4 Claims.

My invention relates to improvements in cooperating bib-cocks, and is, an improvement on an invention for which I was granted Patent Number 1,929,054 in which manually-operated cams are used to operate pressure bib-cocks; and has for an object to provide for cooperatively operating compression bib-cocks by cams, preferably, "actuated by knee or leg pressure.

Other objects of my invention will appear as the description proceeds;

I attain these and other objects of my invention with the mechanism illustrated in the accompanying sheet of drawing, which forms a part of this specification, in which Figure l is aside elevation view of a wash-bowl to which mycomv bined bib-cocks are attached; Fig. 2 is a plan view of Fig. 1 with the wash-bowl shown in broken lines; Fig. 3 is an end elevation of the joined hot and cold-water bib-cocks, shown in Figs. 1 and 2, with the operating cams removed drawn on a larger scale; Fig. 4 is a plan view of oneof the two similar needles used with the operating mechanism, drawn ,on a larger scale; Fig. 5 is a side elevation of Fig. 4; Fig, 6 is a plan view of the ball-socket member, drawn on'a larger scale, and Fig. '7 is a side elevation of Fig. 6. v Similar characters refer to similar parts throughout the drawing. Certain parts are broken away to show other parts hidden thereby.

With more particular reference to the designated parts: A wash-bowl I0 is held against the wall AA in the usual way. A hot-water, compression bib-cock H, is shown in cross-section on a vertical, medial plane; in Fig. 3-and has the inlet opening l3. A cold-water, compression bibcock l2 has the inlet connection I4 and is ex- 'actly similar to the bib-cock ll except that it is left-hand in operation while H is right-hand. The outlet of bib-cock H is shown at I5 while the outlet connection of the bib-cock I2 is shown at It. Bib-cock H has the valve stem ll and bib-cock l2 has the valve stem Hi. The valve [9 is a flange on the lower end of the steml'l and gasket is between the valve I 9 and the valve seat H3. The ball-socket member 2| is threaded on its lower end to engage with a thread on the interior of the cock II and seat on the annular boss 26 within the cock, and has the ball sockets 24 equidistant from its axis and on an inclined line through the said axis. Bearing balls 25 and 25 are seated in sockets 24 and 25 respectively. Helical ball-race member 23 is superposed on the ball-socket member 2| with balls 24 and 25 intervening and engaged in the helical ball race in member 23. Both members 2| and 23 have central aligned holes through which valve stem I1 is extended and set screw 23a, engaged in a radial threaded hole in member 23, is engaged with stem I! to fasten the ballrace member thereon. Helical spring 22 is mounted on'valve stem I! to react between stationary ball-socket member 2| and flange valve l9 and tend to retain the valve gasket 20 on the seat l3 Cap ll has an internal thread which engages with an external thread on the upper end of cock H and covers the upper end of the cock with gasket 21 intervening to make a watertight closure between the cock wall and the cap and between the cap and the valve stem ll.

The upper end of the valve stem I1 is of rectangular cross-section at I! and is extended through a rectangular hole in the handle hub 29 of handle 29. The handle 29 is retained in place on the stem by screw 28 engaged in the stem IT. The handle 29 is first inclined downward from its hub at 29 and then extended at right angles with the stem for reasons to be subsequently explained. The handle 30 of the bibcock I2 has the hub 30 through which the squared end of the valve stem I8 is extended and is retained on the stem by screw 23 engaged in a tapped hole in the stem. The described manner of fastening the handles in place is the usual one. Thehandle 30 is first inclined upward at 30 and then extended at right angles with the stem I8 for reasons to be subsequently explained.

The mixing-chamber block 3| has oppositely disposed threaded holes into which the threaded outlets l5 and I 6, of cocks H and I2, respectively, are engaged. The mixing chamber 32, within the block 3|, communicates with the outlets of both of the cocks II and i2 and is extended rearward in the block where its interior-threaded outer end is engaged with a street elbow on the lower end of the union outlet pipe 55. Bracket 31* is a continuation forward of the block 3| and has the bearing block 33 on its front end.

The hot-water supply pipe 34 connects with the inlet of cock II and is extended through the wall AA to a source of hot water under pressure not shown. The cold-water supply pipe 35 is extended through the wall AA to a source of cold water under pressure, not shown, and is connected with the inlet of the bib-cock 12.

The cam arm 37 is extended from one side of the cam hub 36 and terminates in the yoke 38 adapted for engaging the leg or knee of the operator. The cam frame consists of the hub 36 and the rim 39 joined by the spokes which extend from the hub opposite the cam arm 31. The cam hub 36 is mounted for oscillation on the stud 48 set in the bearing block 33, and bears on the top surface of the bearing block. This disposes the cam over the bracket 3% and the lugs 4t and 41 on the ends of the cam rim project downward and bear on the sides of the bracket to limit the oscillations of the cam to an angle of about 75 as illustrated.

There are two cams disposed parallel with each other on .thecam rim 39. The uppercam con sists of the inclined plane surface 42, on the right-hand end of the rim, and the inclined plane surface 44*, on the left-hand end of the rim,

' joined by the two intervening inclined arcuate cam surfaces 43 and 44. The lowercam consists of the arcuate surface 45, on the right-hand end of the rim, the arcuate surface 41 on the left hand end of the rim and the intervening con v necting inclined arcuate surface 46, 41. The arcuate cam surface 45 has a shorter radius than hasrthearcuatepam surface 4'! and both are concentric with thecam rim axis.

Thepost 49 is disposed on the top surface of the bracket sl adjacent the bib-cocks, and has the upper rectangular hole Bland thelower rectangular hole 59 extended through the same parallel with, the said bracket. There are two similar needles 52 and 5'2 extended through the holes5l and 5!) respectively.- Needle52 has the wheel 53 mounted for revolution on its front end I and the ball 53 mounted for revolution on its a valve I9, 2% is fully closed; The hot and cold-"- rear end; Needle 52 has the wheel 54 mounted forrevolution'on its front end and the ball 54* mounted for revolution on its rear'end. The needlesare insertedzin the holes 50 and Fri-prior. to mounting the wheels 53 and 54 thereon. The

distance between Wheel 53 and ball 53 provides that'wheeltt may bear on. the cam arc 39 while the ball 53 bears on the valve stem handle 36 when the valve is fully closed, and that wheel 54" may bear on the cam arc 39 while the b-alltil bears on the valve stem handle 29 when the Water outlet pipe 55"connects the mixing chamber 32 with hot and cold-water outlet spout 55.

When the hot-water bib-cock l I has its'handle 29 turned in a counter-clockwise direction, from its position shown in solid lines'in Fig. 2, to its dotted-lineposition at 29 in Fig; 2 theileft-hand,

helicaL'bali-race element 23, moving'over the balls '24 and 25 .in a counter-clockwise direction,

will force the valve'stem i1 and its valve i9, 20

upward off of the valve seat I3 against thereaction of the spring 22, and fully open the Valve for the how of water through the same into the mixing chamber 32and into the bowl. Ii! from the spout 56; When the said turning pressure is released from the handle 29 the spring 22' will tend V to react to turn the helical, ball-race element 23 in a clockwise direction to close'the valveagains't the passage of water. Similarly, when the coldwater bib-cock I2 has itshandle 30' turned in a pacity of the cock, and on release of the turning pressure on the handle 30 the reaction of the spring within the cock l2 Will tend to reseat the valve therein and stop the flow of water through the same.

In the illustrated assembled structure, most' clearly shown inFig. 2, the operative parts, when. the bib-cock valves are both closed, areishown in solid lines; The cam is in an' extreme position in oscillation with its stop 49 hearing on the bracket 31 and thecam'handle and crotch'in their extreme right-hand positions. Theneedle 52 andwheel and ball thereon are disposed above.

the needle 52? and the wheelandball thereon and conceal the same. The wheels 53 and 54 bear on the sectorSii while the balls 53? and 54 bear on the stem handles 30 and 29 respectively. When .thecam'has been oscillated till its stop. 4| bears on the. bracket 3i? its positionis shown indotted flinesin Fig. 2 with the said stop'at 4!, the cam handleandcrotchat '3'! and 38, respectively,

the cam rim at 39 longer-radius-sector 41* at il the cam parts 42 and 43 at42' and 43, respectively, and the cam stop 49 at -4i3.;:In the dotted-line positionof thecam, thewheel 53 bears on the sector 69 :which is of equal radius with the-sector 38%, an'dthe ball'y53 allows the stem. handler 35-to' be atits closed position; but the wheelfid bears on the'long-radius sector 41% I now at-ii'l f, which has moved-it to its position;

Thisridispcsition of the b'all M forces the stem handle as to its dotted-line position at 29' andthe hot-water cockll is held in a fully'open positionwith the flange 1-9 and and 2% respectively.

i Now: return-the camjto its solid-line position 1 and again oscillate it in a clockwise direction:

The inclined-plane cam surface fli CIh' fl'lE' upper o-r cold-water'cam, will pass beneath the wheel 53 and force it, the ball 53? and the stem handle 36 i rearward and raise the valve of the. coldwatercock 52' off of'its seat and allow a small stream of cold water to flow from the spout 5E. Continuing cam oscillation, the inclined plane surface'42- moves farther under the wheel 53, forcing the stem handle fiii fartherrearward and increasing the valve opening and volume of cold water,. tilli'theinclined arcuate; cam surface '43 gasket 20 at I 9"; 15

at 5%, while the ball 54 is disposed at 54 .2

reaches the wheel; The incline d plane-surface 42 is useful in that it provides for 'a slow open ing ;of the valvewhile the pressure of Water 7 against the spring is exerted on the minimum valve area and is of minimum force, but its farther extension might provide the spring with sufficient moment arm to move the cam when manual turning. force ceased to act. During the inward'passage .of the'cam surface 43 "beneath the wheel'53, the valve of cock l2 continues to move farther from its seat and an increasing- 7 volume ofcold water continues to flow from the spout5fi,"till' the outer end of surface 43, at the line dd, is reached, when the extreme eccentricity of the upper cam is beneath the wheel and the valve of the coldwater cock lZ is farthest aboveits'seat providing for the maximum flow of cold water. oscillation,--the-o-uter end of the inclined arciiate Continuing the stated cam Z cain surface td passes beneath the wheel 53 and the reaction of the valve spring is depended upon to force the stem handle 39) against [the ball53 and maintain the wheel 53 in contact with the cam as the 'valveis being "closed by the said tendency of the spring to react. Continued clock- Wise cam'movern'ent causes'the entire length of the cam-part 44 to pass beneath the wheel, when the. outerend of the inclined plane 434* passes beneath the wheelv and "the valve'rof the cock i2 is nearly closed, allowing but a small flow of cold water to pass through the cock. A continuation of the same cam movement brings the lower end of the cam-part 44 beneath thewheel 53 when the short-radius, arcuate camsurface 39* passes beneath the wheel and the cold-water cook 12 is closed. During the described-complete oscillation of the cam in a clockwise direction, with respect to its effect on the fiow of cold water, no mention was made of those parts of the said cam movement effective in permitting the flow of hot water. When the part of the cold-water cam marked cc contacted the wheel 53 the inner end of the inclined-plane cam part 46 contacted the wheel 5% and, as the cam-moved, the valve It, as was lifted from its seat i3 and a small flow of hot water passed into the chamber 32 to mix with the large flow of cold water and increasesits temperature as it passed from the spout 56. Continued cam movement brought the of the full volume of hot water to pass, for reasons above explained. Further clockwise movement of the cam provides for increased volume of hotrwater and decreasing volume of cold water till the point indicated at f-f is reached when the cold and hot-water valve openings are equal and equal volumes of cold and hot water enter the mixing chamber and how from the spout 55 at a temperature dependent on the relative temperatures thereof. Continued cam movement moves the more eccentric parts of the cam part 41 to contact the wheel 54 to increase the hot-water valve opening till the most eccentric part thereof bears on the wheel when {the valve i9, 28 is thus held fully open, and remains open with only hot water pouring from the spout 55 and. the bib-cock l2 remains closed. By oscillating the cam from its dotted-line po sition to its solid line position, shown in Fig. 2, the same proportionate quantities of hot and cold water and resultant temperatures are obvalve springs in whatever part of its oscillation. it

may be. a

Although this reduction to practice discloses means for mixing and delivering hot and cold water, the disclosed mechanism is suitable for handling other fluids.

Having thus disclosed my invention, what I claim as new therein and desire to secure by Letters Patent is,

1. Mechanism of the kind described including, two compression bib-cocks disposed in parallel relation, a valve and a valve stem fastened thereon mounted in each of the said bib-cocks for helical oscillation on its axis, two springs each mounted in one of the said bib-cocks for reaction between a stationary part of the said bib-cock and the said valve therein tending to seat the said valve by oscillating the said Valve stem helically in one direction, an arm fastened on each of the said valve stems,-two cams mounted for oscillation on an axis parallel with the axes of the said valve stems, and two needles independently mounted for reciprocation between the said cams and the said stem arms to independently convey operative pressure from each of the said cams to each of the arms and oscillate each of the said arms independently helically to independently open each of he said valves when each of the said cams independently approaches each of the said stems.

2. Mechanism of the kind described including, two compression bib-cocks disposed in parallel relation, avalve and a valve stem fastened thereon mounted in each of the said bib-cocks for helical oscillation on the axis of the said stem,

' two springs each mounted in one of the said bibcocks for reaction between a stationary part of the bib-cock and the said valve therein tending to seat the said valve by oscillating the valve stem helically in one direction, an arm fastened on each of the said valve stems, two cams mounted for oscillation on an axis parallel with the axes of the valve stems, two needles independently mounted for reciprocation between the said cams and the said stem arms to independently convey pressure from each of the said cams to each of the said stem arms and oscillate each of the said stems independently helically in the other direction to open each of the said valves as each of the cams approach each of the said valve stems, and friction-reducing means on each end of each of the said needles.

3. Mechanism of the kind described including, a mixing-chamber block, two compression bibcocks disposed in parallel relation on opposite sides of the said mixing-chamber block, a fluid mixing chamber within the said block, means to connect the outlets of the said bib-cocks with the said mixing chamber, a valve and a valve stem fastened thereon mounted in each of the said bib-cocks operable by helical oscillation on the axis of the valve stem, two springs each mounted in one of the said bib-cocks to react between a stationary part of the bib-cock and the said valve tending to seat the valve by oscillating the valve stem helically in one direction, an arm fastened on each of the said valve stems, two-cams mounted in staggered relation for oscillation on an axis parallel with the axes of the said valve stems, and a needle mounted in bearings for reciprocation between each of the said cams and each of the said stem arms to simultaneously bear on the said cam and the said arm and independently oscillate each of the said stems helically in the other direction and open the said valve thereon when one of the said cams approaches the said stem.

4. Mechanism of the kind described including, a mixing-chamber block, two compression bibcocks disposed in parallel relation on opposite sides of the said mixing-chamber block, a fluid mixing chamber within the said block, means to connect the outlets of the said bib-cocks with the said fluid mixing chamber, a valve and a p valve stem fastened thereon mounted in each of the said bib-cocks operable by helical oscillations on the axis of the valve stem, two springs one mounted in each of the said bib-cocks to react between a stationary part of the bib-cock and the said'valve tending to seat the valve by oscillating the valve stem thereon helically in one direction, an arm fastened on each of the valve stems, a bracket fastened on the said mixingchamber block, a cam frame'mount ed for osoil lation on the said bracket on an axis parallel with the axes of the said valve stems, two separate, staggered, cams fastened on the said cam frame, means between each 01' the said cams and each of the said stem arms to separately oscillate each ofv the said stems helically in the other direction and open the said valve thereon when one of the said cams approaches the stem of the said valve,"and anarm terminating in a crotch fastened on the said cam frame.

' STEPHEN J. CARMODY. 

